English Reference

Word

thickest

Phoneticsthick·est, stress on the first syllable

US/ˈθɪkɪst/

UK/θˈɪkəst/

Definition

adj. having the greatest width from one side to the other, or the most dense and heavy.

adj. superlative of 'thick'; having the greatest thickness, density, or concentration among three or more things.

Examples

“This book is the thickest one on the shelf.”

“The cook uses the thickest pan in the kitchen to keep the soup hot longer.”

“In the forest, the light fades first where the thickest trees stand close together and block the late sun.”

Examples

simple

“This book is the thickest one on the shelf.”

contextual

“The cook uses the thickest pan in the kitchen to keep the soup hot longer.”

complex

“In the forest, the light fades first where the thickest trees stand close together and block the late sun.”

Collocations

Common phrases and expressions where native English speakers use the word “thickest” in context.

Verb

01. be thickest

“This branch is the thickest one on the tree.”

verb + adj

02. choose thickest

“Choose the thickest blanket to stay warm tonight.”

verb + adj

03. find thickest

“Find the thickest stick to hold the tent up.”

verb + adj

Adjective

04. thickest book

“This is the thickest book on my shelf.”

adj + noun

05. thickest fog

“We drove slowly in the thickest fog this morning.”

adj + noun

06. thickest jacket

“Wear your thickest jacket because it is very cold outside.”

adj + noun

07. thickest wall

“This is the thickest wall in the house.”

adj + noun

Noun

08. one of thickest

“This is one of the thickest forests in the country.”

pron + prep + adj

09. thickest of all

“This slice is the thickest of all.”

adj + prep + pron

10. in the thickest fog

“We got lost in the thickest fog last night.”

11. one of the thickest walls

“The castle has one of the thickest walls in Europe.”

12. the thickest book here

“This is the thickest book here.”

Real-World Examples

“The new study also reveals that some areas have more faults than others, and that the thickest lunar crust appears to have the fewest faults, suggesting these areas may be the most stable.”
Phys.org 15 Oct 2026
“Researchers have created a new global map showing where unusual volcanic rocks linked to rare earth elements are found, uncovering a striking connection to the oldest and thickest parts of Earth's continents.”
ScienceDaily 26 May 2026
“Since I was old enough to wear makeup, I’ve been on a mission to find the thickest, most concealing, total-coverage, hide-everything kind of foundation.”
BBC 8 Nov 2017

Related words

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
Frequency
Occasional
Level
A2 · Elementary
Updated

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